The invention discloses a cover paper conveying mechanism for a cover machine. According to the key points of the technical scheme, the cover paper conveying mechanism comprises a cover machine body,a main shaft, a conveying panel and a transmission assembly. A rotating wheel is coaxially fixed to the main shaft, and a slip ring is arranged on the end surface of the rotating wheel in a concave mode. The center of the slip ring is eccentrically arranged with the central axis of the main shaft, and the conveying panel is slidably connected with the cover machine body. The transmission assemblycomprises a first transmission column and a second transmission column, and the first transmission column and the second transmission column are slidably connected with the cover machine body. The second transmission column is located between the first transmission column and the main shaft, and a sliding column and a positioning inserting hole are correspondingly arranged at the two ends of the second transmission column. A connecting cylinder is fixedly connected to the end, close to the second transmission column, of the first transmission column, and the end, away from the second transmission column, of the first transmission column is connected with the conveying panel. A positioning plug pin is connected to a piston rod of the connecting cylinder. The cover paper conveying mechanismcan realize conveying and sizing of cover paper driven by a driving device, and reduces the equipment cost of the cover machine and the cover processing cost.